Why, are you implying American companies will only operate in Europe if they can break the law??? They sent an email, she didn't respond and they stated that because she didn't respond she automatically made herself redundant....In Ireland you cannot default to "you mad yourself redundant because you didn't reply", there was no agreement to change her terms and conditions (redundancy in Ireland is a legal agreement, if its not voluntary than they could not fill the same role, even with a different title, with someone else for several years).
It seems many Americans do want to start companies in Europe though. US multinationals directly employ about 190,000 people in Ireland, a country with a total population of 5 million.
Readit News
In Europe you have these barriers to removing an employee that make even the most basic of business interactions 10x more complicated.